Ex 080: Strip filename from @typeName output to address #130

exercises/080_anonymous_structs.zig

@@ -7,7 +7,7 @@
 //
 //     const Foo = struct {};
 //
-// * The value of @typeName(Foo) is "Foo".
+// * The value of @typeName(Foo) is "<filename>.Foo".
 //
 // A struct is also given a name when you return it from a
 // function:
@@ -61,16 +61,25 @@ pub fn main() void {
     };
 
     print("[{s}: {},{},{}] ", .{
-        @typeName(@TypeOf(circle1)),
+        stripFname(@typeName(@TypeOf(circle1))),
         circle1.center_x,
         circle1.center_y,
         circle1.radius,
     });
 
     print("[{s}: {d:.1},{d:.1},{d:.1}]\n", .{
-        @typeName(@TypeOf(circle2)),
+        stripFname(@typeName(@TypeOf(circle2))),
         circle2.center_x,
         circle2.center_y,
         circle2.radius,
     });
 }
+
+// Perhaps you remember the "narcissistic fix" for the type name
+// in Ex. 065? We're going to do the same thing here: use a hard-
+// coded slice to return the type name. That's just so our output
+// look prettier. Indulge your vanity. Programmers are beautiful.
+fn stripFname(mytype: []const u8) []const u8 {
+    return mytype[22..];
+}
+// The above would be an instant red flag in a "real" program.

patches/patches/080_anonymous_structs.patch

@@ -1,8 +1,18 @@
-51c51
-<     var circle1 = ??? {
----
->     var circle1 = Circle(i32) {
-57c57
-<     var circle2 = ??? {
----
->     var circle2 = Circle(f32) {
+--- exercises/080_anonymous_structs.zig
++++ answers/080_anonymous_structs.zig
+@@ -48,13 +48,13 @@
+     // * circle1 should hold i32 integers
+     // * circle2 should hold f32 floats
+     //
+-    var circle1 = ??? {
++    var circle1 = Circle(i32){
+         .center_x = 25,
+         .center_y = 70,
+         .radius = 15,
+     };
+ 
+-    var circle2 = ??? {
++    var circle2 = Circle(f32){
+         .center_x = 25.234,
+         .center_y = 70.999,
+         .radius = 15.714,